Comparison of parallaxes from timing, VLBI, and Gaia measurements. Top: Timing versus Gaia. Bottom: Timing versus VLBI. The error bars represent the formal uncertainties quoted from the published data, usually corresponding to a confidence level of 68%. There are four pulsars with 20 timing parallax measurements for the Gaia pulsar sample and five pulsars, but with 25 timing parallax measurements for the VLBI pulsar sample. Different markers are used to distinguish the ephemerides used in the timing solution, that is, blue filled triangles for DE200, green crosses for DE405, purple filled inverted triangles for DE421, and red filled circles for DE436.